I had on my laptop windows 7 and ubuntu server 9.10 (the partition with windows 7 was automatically selected at boot time). Today I wanted to install ubuntu 10.4, and for that I deleted the 9.10 partition using windows manager, formatting it to a new blank partition.
Since that, every time I turn on my laptop the grub loader appears and I get an error saying:
unknown filesystem grub rescue>
I tried inserting my windows 7 install disc to repair the installation, but even after I did this 2 times nothing changed.
What should I do in order to repair my boot records?